The Sig Sauer P322 is a .22 LR pistol with a 10+1 capacity, 4-inch barrel, and single-action-only trigger. It ships with both flat and curved trigger shoes, and the slide has a removable rear sight plate for optic mounting. Fiber optic front sight and adjustable rear come standard. 
 

Key Specifications 

• Brand: Sig Sauer 
• Model: P322 
• Caliber: .22 LR 
• Action: Single Action Only (SAO) 
• Capacity: 10+1 rounds 
• Barrel Length: 4 inches 
• Weight: 2.3 lbs (approximately 17.10 oz) 
• Sights: Fiber optic front & adjustable rear 
• Grip Material: Black Polymer 
• Finish: Black Hard Coat Anodized 
   

Detailed Features 

The optic-ready slide is a practical differentiator: removing the rear sight plate exposes a mounting footprint for compact red dots, which is useful for anyone running dot-sight training at lower ammo cost. The interchangeable trigger shoes let you swap between flat and curved profiles without tools, which is a nice touch for fitting personal preference. The fiber optic front sight picks up quickly in varied lighting. The hard coat anodized finish on the aluminum frame holds up well to regular range use.

Owners of the Sig Sauer P322 generally give it high marks for accuracy and the optic-ready feature. Many shooters specifically chose it for training because the .22 LR format keeps costs down while the controls mirror larger-caliber pistols. The ergonomics get consistent positive feedback, and most users find the recoil almost nonexistent, which suits new shooters well.

The common criticisms: some owners have reported magazine reliability issues, including loading difficulties and occasional feeding failures after extended use. The trigger draws mixed reactions -- acceptable to most, but a few find the pull weight higher than expected for an SAO. Some buyers feel the price is a stretch compared to similarly capable .22 pistols. A few reviews mention a break-in period needed before the gun runs at its best, which can be frustrating if you expect it to be flawless from round one.